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本文提出了描述爆破地震波的空间相关性的相干函数的理论模型。该模型由三部分组成，分别代表影响地震波的空间相关性的三个主要因素，即：不相干性、传递波、场地效应。文中还指出相干函数的非相干部分是一个非负实函数且为频率和测点距离的减函数。传递波和场地效应部分是各部分波的相位的单位模数的复函数。
This paper presents a theoretical model describing the coherence function of the spatial correlation of blasting seismic waves. The model is composed of three parts, which respectively represent the three main factors affecting the spatial correlation of seismic waves, namely: incoherence, transmitted wave and site effect. It is also pointed out that the non-coherent part of the coherence function is a nonnegative real function and a decreasing function of the frequency and the distance of the measuring point. The transmitted wave and the field effect are the complex functions of the unit modulus of the phases of the waves in each part.